Home / 752,509.60-1,128,936.89-326,117.01

Finding the Fourth Proportional to 752,509.60, 1,128,936.89 and 326,117.01

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Solution

The fourth proportional to 752,509.60, 1,128,936.89 and 326,117.01 is: 489,250.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,509.60 : 1,128,936.89 = 326,117.01 : x
  2. Step 2: Convert to fraction form
    752,509.60/1,128,936.89 = 326,117.01/x
  3. Step 3: Cross multiply
    752,509.60x = 1,128,936.89 × 326,117.01
  4. Step 4: Simplify right side
    752,509.60x = 368,165,523,887.30
  5. Step 5: Solve for x
    x = 368,165,523,887.30/752,509.60
  6. Step 6: Final answer
    x = 489,250.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.